IS 12-TSP IGA 12-TSP IMPAC-Transfer-Standard-Pyrometer

Transkript

1 IS 12-TSP IGA 12-TSP IMPAC-Transfer-Standard-Pyrometer Operation Manual Betriebsanleitung Proven Quality

2 IMPAC pyrometers IS 12-TSP IGA 12-TSP LumaSense Technologies All rights reserved. LumaSense Technologies 3033 Scott Blvd. Santa Clara, CA Tel.: Fax: Internet: LumaSense Technologies 16 Thornton Road Oakland, NJ Tel.: Fax: Internet: Please call for Factory Repair and Return There are no user-serviceable components in the instrument Disassembly of the instrument is not allowed, and the warranty is VOID if the instrument is disassembled, tampered with, altered or otherwise damaged, without prior written consent from LumaSense Technologies or if considered by LumaSense Technologies to be abused or used in abnormal conditions. No adjustments may be made to the targeting laser. It is fixed at the factory. No adjustments may be made to the targeting laser s power level. General Information about the user manual Congratulations on choosing the high quality and highly efficient IMPAC pyrometer. Please read this manual carefully, step by step, including all notes to security, operation and maintenance before installing the pyrometer. For installation and operation of the instrument this manual is an important source of information and work of reference. To avoid handling errors keep this manual in a location where you always have access to. When operating the instrument it is necessary to follow the general safety instructions (see section 3, Safety). Additionally to this manual the manuals of the components used are valid. All notes especially safety notes are to be considered. Limit of liability and warranty All general information and notes for handling, maintenance and cleaning of this instrument are offered according to the best of our knowledge and experience. LumaSense Technologies is not liable for any damages that arise from the use of any examples or processes mentioned in this manual or in case the content of this document should be incomplete or incorrect. LumaSense Technologies reserves the right to revise this document and to make changes from time to time in the content hereof without obligation to notify any person or persons of such revisions or changes. All series 12 instruments from LumaSense Technologies have a warranty of two years from the invoice date. This warranty covers manufacturing defects and faults which arise during operation only if they are the result of defects caused by LumaSense Technologies. The Windows compatible software was thoroughly tested on a wide range of Windows operating systems and in several world languages. Nevertheless, there is always a possibility that a Windows or PC configuration or some other unforeseen condition exists that would cause the software not to run smoothly. The manufacturer assumes no responsibility or liability and will not guarantee the performance of the software. Liability regarding any direct, or indirect damage caused by this software is excluded. Copyright All copyrights reserved. This document may not be copied or published, in part or completely, without the prior written permission of LumaSense Technologies GmbH. Contraventions are liable to prosecution and compensation. All rights reserved. 2

3 IMPAC pyrometers IS 12-TSP IGA 12-TSP Contents General... 2 Information about the user manual... 2 Limit of liability and warranty... 2 Copyright... 2 Legend... 5 Terminology... 5 Disposal / decommissioning Technical data Dimensions Overview Appropriate use Scope of delivery Safety General Laser targeting light Electrical connection Electrical Installation Pin assignment for the connector on the back of the pyrometer for main connection cable for additional limit contacts cable Connecting the pyrometer to a PC Connecting to RS232 interface Connecting to RS485 interface Connection of additional analyzing devices Mechanical installation Aligning of the pyrometer to the aperture Special aligning notes Instrument settings Sighting Thru-lens view finder Laser targeting light Optics Adjusting the required measuring distance Adjusting the measuring distance with help of the table Other measuring distances Instrument settings Key panel operation Functions and setting of parameters Factory settings

4 IMPAC pyrometers IS 12-TSP IGA 12-TSP 9 Parameters Emi (emissivity ) t 90 / s (exposure time) t CL / s (clear times of the maximum value storage) FROM / TO (beginning and end of sub range) / 4 ma (analog output) SETP (limit contacts) C / F (temperature display) RS (digital interface) ADR (address) kbaud (baud rate) ma (test current output) Wait time (only available via interface commands, see 15, Data format UPP ) Switch contact Settings via interface and software Installation Program start The start menu Beginning Number of devices Basic settings Measurement (color bar) Measurement (online trend) Output listing (analyzing) Output.TXT file (analyzing) Output trend (analyzing) PC sampling rate (time interval between two measurements) Spot size calculator Transport, packaging, storage Maintenance Safety Service Changing of optics Trouble shooting Data format UPP (Universal Pyrometer Protocol) Reference numbers Reference numbers instruments Reference numbers accessories Index

5 IMPAC pyrometers IS 12-TSP IGA 12-TSP Legend MB Note: The note symbol indicates tips and useful information in this manual. All notes should be read with regard to an effective operation of the instrument. Security note laser beam Indicates to the danger of a built-in laser targeting light. Shortcut for Temperature range (in German: Messbereich) Terminology The used terminology corresponds to the VDI- / VDE-directives 3511, page 4. Disposal / decommissioning Inoperable IMPAC pyrometers have to be disposed corresponding to the local regulations of electro or electronic material. 1 Technical data Temperature ranges: IS 12-TSP: 600 to 2520 C IGA 12-TSP: 200 to 1020 C 600 to 3000 C 250 to 1400 C 850 to 2520 C Spectral range: IS 12-TSP: 0.94 µm (at temperature range 600 to 2520 C / 3000 C) 0.65 µm (at temperature range 850 to 2520 C) IGA 12-TSP: 1.57 µm Accuracy 1 ( = 1, t 90 = 1 s, T amb. = 23 C) Repeatability: ( = 1, t 90 = 1 s, T amb. = 23 C) Below 1500 C: 0.15% of measured value in C + 1 C Above 1500 C: 0.25% of measured value in C Above 2700 C: 0.35% of measured value in C 1 C Resolution: Up to 1000 C: 0.1 C at interface and display Above 1000 C: 0.1 C at display, 0.01 C at interface < 0.025% of temperature range at the analog output Power supply: Power consumption: Analog output: Load: Test current output: Digital interface: Display: Isolation: Sub range: Signal processing: Parameters: 24 V DC (15 to 40 V DC) or 24 V AC (12 to 30 V AC), 48 to 62Hz max. 14 W 0 to 20 ma or 4 to 20 ma switchable 0 to 500 Ohm 10 ma, fixed Switchable at the instrument: RS232 or RS485 addressable (half duplex), baud rate 2.4 up to kbd Built-in 5 digit LED display, height 13 mm, additional function LED s Power supply, digital interface, analog output are galvanically isolated against each other and housing Any range adjustable within the temperature range minimum span 51 C Photoelectric current, digitized Adjustable at the instrument or via serial interface: emissivity ; response time t 90 ; clear times t CL of the maximum value storage; temperature sub range; analog output 0 to 20 or 4 to 20 ma; switch points for limit contacts; C or F; interface RS232 or RS485; 1 Note: A surrounding temperature of 10 to 43 C is permissible for measured temperatures between 10% and 100% of the temperature range for the stated measurement uncertainty. The measurement uncertainty increases by 1 C for surrounding temperatures of between 0 to 10 C or 43 to 60 C. For temperature ranges of up to 5% of the measuring range an additional temperature drift of 0.2 C/ C (23 C) should be added. The temperature drift is 0.05 C/ C (23 C) for measured temperatures of 5% to 10% of the measuring range. 5

6 IMPAC pyrometers IS 12-TSP IGA 12-TSP address; baud rate; test current output Additionally (only via interface adjustable): key lock, wait time, recalibration (with special software) Emissivity : to in 1/1000 steps Exposure time t 90 : 1 ms (with dynamical adaptation at low signal levels); factory setting 1 s, adjustable to 0.01 s; 0.05 s; 0.25 s; 1 s; 3 s; 10 s Maximum value storage: Built-in single or double storage. Clearing with adjusted time t clear (off; 0.01 s; 0.05 s; 0.25 s; 1 s; 5 s; 25 s), extern, via interface or automatically with the next measuring object Limit switches: 2 relay outputs (switch-over relay contacts), switch power max. 30 W (I max : 1 A, U max : 60 V DC) Rise and fall times: exposure time of the pyrometer + 2 ms Control panel: 4 keys, operate with tip of ball-point pen Protection class: IP65 (DIN ) Ambient temperature: 0 to 70 C at housing Storage temperature: -20 to 70 C Relative humidity: Non condensing conditions Weight: 2.2 kg Sighting: built-in parallax free thru-lens view finder, optionally with an additional built-in laser targeting light (max. power level < 1 mw, = nm, CDRH class II) CE-label: According to EU directives about electromagnetic immunity 1.1 Dimensions 6

7 IMPAC pyrometers IS 12-TSP IGA 12-TSP 2 Overview Display C or F as well as active limit switches 2 LED display for meas. temperature or parameters 3 Parameter indicator 4 Parallax free thru-lens view finder 5 Setting keys (operate with tipp of ball-point pen 6 Connection cable 7 Laser warning label (only instruments with laser targeting light) 8 Focusable optics 9 Label with optics information 10 Mounting holes for accessories 12 Type label (bottom side of the instrument) 2.1 Appropriate use IS 12-TSP and IGA 12-TSP are extremely precise and longer-term stable transfer standard pyrometers which can be used for the checking of calibration sources in the respective pyrometer spectral range. 2.2 Scope of delivery Instrument with selectable optics, PC measurement and evaluation software InfraWin, works certificate with 3 selected measuring points, user manual. Note: The connection cable is not included with the instrument and has to be ordered separately (see 15, Reference numbers). 3 Safety This section offers an overview about important safety aspects. Additionally in the several sections there are concrete safety aspects to avert danger. These aspects are indicated with symbols. Labels and markings at the instrument have to be noticed and keep in a permanent readable condition. 3.1 General Each person working with the pyrometer must have read and understood the user manual before operation. Also this has to be done if the person already used similar instruments or was already trained by the manufacturer. The pyrometer has only to be used for the purpose described in the manual. It is recommended to use only accessories offered by the manufacturer. 3.2 Laser targeting light For easy alignment to the measuring object the pyrometers can be equipped with a laser targeting light. This is a visible red light with a wavelength between 630 and 680 nm and a maximum power of 1 mw. The laser is classified as product of laser class II. 7

8 IMPAC pyrometers IS 12-TSP IGA 12-TSP Warning: To reduce the risk of injury to the eyes, do not look directly into the targeting laser and do not point the targeting laser into anyone's eyes. The instrument is equipped with a class II laser that emits radiation. Safety regulations: Never look directly into the laser beam. The beam and spot can be watched safely from side. Make sure that the beam will not be reflected into eyes of people by mirrors or shiny surfaces. 3.3 Electrical connection Follow common safety regulations for mains voltage (230 or 115 V AC) connecting additional devices operating with this mains voltage (e.g. transformers). Touching mains voltage can be fatal. An incorrect connection and mounting can cause serious health or material damages. Only qualified specialists are allowed to connect such devices to the mains voltage. 4 Electrical Installation The IS 12-TSP or IGA 12-TSP are powered by a voltage of either 24 V (optional 15 to 40 V DC or 12 to 30 V AC, 48 to 62 Hz. As the instrument is operating with heated and thermostatically controlled sensors, it needs a warm-up of up to 30 minutes to achieve the maximum accuracy. But directly after connecting to the power supply the instrument already has a very good accuracy due to the standard temperature compensation. To switch off the instrument, unplug the connector or interrupt the power supply. To meet the electromagnetic requirements, a shielded connecting cable must be used. The shield of the connecting cable has to be connected only on the pyrometer side to avoid ground loops. LumaSense offers connecting cables, they are not part of standard scope of delivery. The main connecting cable has wires for power supply, interface, analog output, external laser switch and external clear of maximum value storage via contact (see 15, Reference numbers) and 12 pin angle connector. The cable includes a short RS232 adapter cable with a 9 pin SUB-D connector for direct PC communication. This adapter is not used in combination with RS485 interface. connector connector For use of the limit contacts the separate additional cable has to be for main for additional cable used. connection cable for limit switches 4.1 Pin assignment for the connector on the back of the pyrometer for main connection cable Pin Color Indication K white + 24 V power supply (or 24 V AC) ( V) A brown 0 V power supply L green + I outp. analog output B yellow I outp. analog output H gray external switch for targeting light (bridge to K) J pink external clearing of maximum value storage (bridge to K) * ) or output for switch contact (see 9.13) G red DGND (Ground for interface) F black RxD (RS232) or B1 (RS485) C violet TxD (RS232) or A1 (RS485) D gray/pink B2 (RS485) (bridge to F) E red/blue A2 (RS485) (bridge to C) M orange Screen only for cable extension don t connect at the switchboard * ) for setting of clear time to "extern" (see 9.3 clear time for maximum value storage) C D E B L F A G M K J H Pin assignment of left connector (side of male inserts) 8

9 IMPAC pyrometers IS 12-TSP IGA 12-TSP for additional limit contacts cable The instrument is equipped with two independent relay limit switches. These are two separate switch-over relay contacts, changing its state if the adjusted temperatures are exceeded. Pin Color Indication 7 pink 5 white 1 yellow 3 grey 6 green 4 brown 2 blue 8 red Limit contact S1 (drawing shows status without power or with exceeded limits) Limit contact S2 (drawing shows status without power or with exceeded limits) Pin assignment of right connector (side of male inserts) The drawing of the limit contacts indicates their switch status without power. The limit contacts switch after supplying the pyrometer with power. If the temperature exceeds the adjusted limit value, the corresponding limit contact switches back in the first position and is indicated by the corresponding LED on the pyrometer (see 8.2 under Limit contacts). Any temperature value within the range of the pyrometer is adjustable. The setting of the limits can be done directly at the pyrometer (see 9.6, SETP (limit contacts)) or via PC and software InfraWin (see 10.6, Basic settings or 10.7, Measurement color bar. The switch time of the relay contacts is 2 ms plus the response time of the pyrometer. 4.2 Connecting the pyrometer to a PC The pyrometers are equipped with a serial interface RS232 or RS485 (switchable at the pyrometer) for connection to a processor / PC. Standard on a PC is the RS232 interface. At this interface one pyrometer can be connected if the interface is set to RS232. Only short distances can be transmitted with RS232 and electromagnetic interferences can affect the transmission. With RS485 the transmission is to a large extend free of problems, long transmission distances can be realized and several pyrometers can be connected in a bus system. If RS485 is not available at the PC, it can be realized with an external converter which converts the RS485 in RS232 for a standard connection to a PC. When using a converter RS485 RS232 take care, that the converter is fast enough to receive the pyrometer s answer to an instruction of the master. Most of the commonly used converters are too slow for fast measuring equipment. So it is recommended to use the LumaSense-converter (order no ). With a slow RS485 connection it is also possible to set a wait time at the pyrometer which delay the response of a command to the pyrometer (see 9.12, Wait time tw) Connecting to RS232 interface The transmission rate (in baud) of the serial interface is dependent on the length of the cable. Values between 2400 and Bd may be set. The baud rate has to be reduced by 50% when the transmission distance is doubled (see also 9.10, Baud rate (kbaud)). Typical cable length for RS232 at Bd is 7 m. C D E B F L J A G M K H Pyrometer s side (soldering side) TxD (violet) RxD (black) DGND (red) Cable PC s side (soldering side) 9

10 IMPAC pyrometers IS 12-TSP IGA 12-TSP Connecting to RS485 interface Half-duplex mode: A1 and A2 as well as B1 and B2 are bridged in the 12-pin round connector of the connecting cable, to prevent reflections due to long stubs. It also safeguards against the interruption of the RS485 Bus system should a connecting plug be pulled out. The master labels mark the connections on the RS485 converter. The transmission rate of the serial interface in Baud (Bd) is dependent on the length of the cable. Values between 2400 and 115 kbd may be set. The baud rate is reduced by 50% when the transmission distance is doubled (see 9.10, Baud rate (kbaud)). Typical cable length for Bd is 2 km. Master A B S A1 B2 A2 B1 C D E B L F A DGND G M K J H Pyrometer 1 e.g. address 00 A1 B2 A2 B1 C D E B L F A DGND G M K J H Pyrometer 2 e.g. address 01 Terminator 120 Ohm A1 B2 A2 B1 C D E B L F A DGND G M K J H Pyrometer 32 e.g. address Connection of additional analyzing devices Additional analyzing instruments, for example a LED digital display instrument only needs to be connected to a power supply and the analog outputs from the pyrometer. Another Instruments like a controller or printer can be connected to the display in series as shown above (total load of resistance max. 500 Ohm). white 230 V ~ brown green 24 V DC C Power supply LED digital display Controller yellow Writer 5 Mechanical installation For correct temperature determination of a calibration source, the pyrometer must be aligned centrally and along the optical axis of the respective radiation source. For reasons of different sizes and construction types of calibration sources, the installation brackets from the LumaSense accessories are suitable to only a limited extent for these wide-ranging requirements. You must therefore purchase or build a suitable alignment aid yourself. The pyrometer is fitted with M5 diameter holes on the front face and bottom for fixing as required. Installation note: Strong incidence of daylight or lamp light into the view finder can affect the measurement. In this case the ocular has to be covered. 5.1 Aligning of the pyrometer to the aperture Notes: The information contained in VDI/VDE (German Electrical Engineering Association) Directive 3511, Sheet 4 and supplementary sheet 4.4 must be observed when calibrated pyrometers and when correctly carrying out temperature measurements. 10

11 IMPAC pyrometers IS 12-TSP IGA 12-TSP The following points must also be observed in the special case of the TSP device: Special aligning notes The size of the spot size is determined first and foremost by the distance of the pyrometer from the radiator in addition to the optical equipment fitted to the pyrometer (see measure field table in 7, Optics). The pyrometer s spot size should be selected so that the temperature is only received from the floor of the radiator opening, since the emissivity is normally high and homogenous in this location but normally declines along the wall and towards the opening. The pyrometer should not be positioned so close to the radiator that it is heated by this to above its maximum permissible ambient temperature. If the selected pyrometer measured field is very small, the temperature display can change due to possible non-homogenous radiator surfaces when aligning the pyrometer (this is especially noticed on radiators of not particularly high quality). In typical cases, the optical focus point is adjusted at the height of the radiator front. To achieve a smaller or larger measured field, the focus point can be adjusted in front or behind this location. Course of radiation Radiator front Measured distance Optics Notes: IMPAC transfer standard pyrometers are fitted with an extremely good optical system which only receives the minimum radiation quantities outside the measured beam. For this reason it is not necessary to put an additional aperture in the course of the beam during measurement which limits the received radiation. This should be taken into consideration especially for comparative measurements with other pyrometer types since a high proportion of unwanted additional radiation can be received under certain conditions depending on the optical system fitted if no aperture is fitted during measurement Instrument settings The pyrometer has been set to an emissivity of 1 ex works. All calibration sources which have been calibrated with an effective emissivity of 1 will be checked with this setting. In case that the calibration source has to be checked with its true emissivity, the corresponding value can be set at the pyrometer (see 8, Instrument settings). The exposure time is set to 1 sec ex works. This is the standard setting for TS pyrometers which is achieved with maximum precision at minimum noise values. Changing this setting is only necessary if the pyrometer is to be used for other measuring tasks. 6 Sighting For exact aiming to the object the pyrometers are equipped with a thru-lens view finder and an additional laser targeting light (exception: the IS 12-TSP with temperature range 850 to 2520 C has only a view finder). 6.1 Thru-lens view finder In the optimized thru-lens view finder a circle marks the exact position and size of the measuring spot. The focusable optics is correctly adjusted to the required distance, if the measuring object is shown as a sharp image in the view finder (adjusting the measuring distance see 7, Optics). Pyrometers with temperature ranges exceeding 1500 C are equipped with an adjustable eye protection filter. Turning the ocular changes the filter from bright to dark. Eye protection filter 11

12 IMPAC pyrometers IS 12-TSP IGA 12-TSP 6.2 Laser targeting light The laser point marks the center of the spot, not the exact size. On the focused measuring distance the laser has its smallest spot size and is illustrated exactly (adjusting the measuring distance see 7, Optics). The laser targeting light can be used without affecting the measurement. 7 Optics The pyrometers are equipped ex works with a focusable optics. With this focusable optics the best possible distance ratio can always be adjusted for each distance within the optics limits (the smallest and largest value of each optics for the measuring distance in the table). Optics 1 Optics 2 Optics 3 Focusable optics IS 12-TSP Measuring distance a [mm] Spot size M 98 [mm] Focusable optics IGA 12-TSP Spot size M 98 [mm] Objective length S [mm] all temperature ranges C C Aperture D [mm] * ) * ) The aperture is the effective lens diameter. It is depending on the objective length. The biggest aperture value (17 mm) belongs to the fully extended objective (S = 30 mm), the smallest aperture value (13.5 mm) for objective length S = 0. Intermediate values have to be interpolated (e.g. calculating the spot size if the measuring distance differs from the adjusted distance). The spot size calculator included in the InfraWin software is the easiest way to calculate the spot size if the measuring distance differs from a fixed adjusted (see 10.13, Spot size calculator). 7.1 Adjusting the required measuring distance The required measuring distance must be adjusted to achieve the spot sized mentioned in the tables above. For releasing the optics has to be turned anticlockwise. Then it can be pushed or pulled to find the correct measuring distance (see 6, Sighting). For fixing the optics has to be turned clockwise. Push / pull fix release Note: The measuring object has to be bigger or at least as big as the spot size of the pyrometer Adjusting the measuring distance with help of the table The table mentions the minimum and maximum measuring distance for each of the 3 focusable optics. This corresponds to the longest or the shortest objective length. As an example a further value between max. and min. is shown. The objective length S can be measured with a caliper Other measuring distances For all other measuring distances the optics will be adjusted with help of the view finder or the laser targeting light (see 6, Sighting). S (Objective length) 12

13 IMPAC pyrometers IS 12-TSP IGA 12-TSP 8 Instrument settings All instrument settings can be done directly at the instrument. To activate the adjusting keys, a tip of ball pen must be used. This avoids changing parameters by mistake. 8.1 Key panel operation Temperature- or parameter display Indication of limit switches Indication C or F Parameter indicator Setting keys: Targeting light on / off 1) Parameter selection 2) Change of parameters: 3) Confirmation of parameter Emissivity Exposure time (t 90 /s) Clear time of max. value storage (t CL /s) Beginning of sub range (FROM) End of sub range (TO) Analog output 0 or ma (0/4 ma) Setting of limit switches (SETP) Temperature in C or F ( C/ F) Interface RS232 or RS 485 (RS) Address (ADR) Baud rate (kbaud) Test current output (10 ma) 8.2 Functions and setting of parameters Temperature or parameter display: Targeting light on / off: Setting keys: 1) PAR: Limit contacts: Scale C or F: 2) : 3) ENT: Parameter indicator: In the measuring mode the display shows the actual temperature reading. After pushing the parameter key the display indicates the actual value of one selected parameter. Special indications: 8888 = measurement exceeds the end of sub range Pushing the PL key in measuring mode the laser targeting light is switched on. The IS 12 measures continuously also with switched on targeting light and the display shows the actual temperature reading. The laser targeting light is switched off automatically after approx. 2 min or after a further push of the PL key. With the PAR button all available parameters are displayed in the following description. Pushing the button again changes the display to the next parameter, after the last parameter it changes to the actual temperature reading. With the arrow keys and all parameter settings can be displayed. Pushing the button longer changes the settings in fast mode (the keys and ENT are blocked if the keyboard is locked via the interface commands or/and during a measurement in combination with a PC and InfraWin). If a parameter is changed with the arrow keys the new value must be confirmed by pushing the ENT key. If it is not confirmed with ENT the instrument is still operating with the previous parameter value. If no key is pressed for approx. 30 s the display changes to the temperature indication. Two limit switches can be set. If the measuring temperature exceeds the adjusted limit contact temperature, the LED S1 or S2 displays the switch status. The LED indicates the temperature scale in C or F. LED s indicate which pyrometer parameter is selected for reading or changing. 13

14 IMPAC pyrometers IS 12-TSP IGA 12-TSP 8.3 Factory settings Emissivity () = 1,000 Exposure time (t 90 / s) = 1 s Clear time (t CL ) = 0,00 (= OFF) Sub range (from / to) same as temperature range Analog output (0 / 4 ma) = ma Limit contacts = end of temperature range Hysteresis = ±2 C Temperature display ( C / F) = C Interface (RS) = RS232 Address (ADR) = 00 Baud rate (kbaud) = 19,2 kbd Test current output (10 ma) = off 9 Parameters 9.1 Emi (emissivity ) For a correct measurement it is necessary to adjust the emissivity. This emissivity is the relationship between the emission of a real object and the emission of a black body radiation source (this is an object which absorbs all incoming rays and has an emissivity of 1 = 100%) at the same temperature. Different materials have different emissivities ranging between 0% and 100% (settings at the pyrometer between 10 and 100%). Additionally the emissivity is depending on the surface condition of the material, the spectral range of the pyrometer and the measuring temperature. The emissivity setting of the pyrometer has to be adjusted accordingly. Typical emissivity values of various common materials for the two spectral ranges of the instruments are listed below. The tolerance of the emissivity values for each material is mainly dependent on the surface conditions. Rough surfaces have higher emissivities. Measuring object Emissivity Emissivity Emissivity (at 0.65 µm) (at 0.94 µm) (at 1.57 µm) Black body furnace Steel heavily scaled to 0.9 Steel rolling skin to 0.88 Steel, molten to 0.25 Slag to 0.85 Aluminum, bright Chromium, bright 0.32 to to to 0.3 Brass oxidized (tarnished) 0.7 to to to 0.7 Bronze, bright Copper, oxidized to 0.85 Copper, bright Zinc to 0.55 Nickel to 0.2 Gold, bright Silver, bright Porcelain glazed Porcelain rough 0.8 to to to 0.9 Graphite 0.82 to to to 0.9 Fireclay 0.45 to to to 0.6 Stoneware, glazed 0.86 to to to 0.9 Brick 0.85 to to to 0.9 Soot t 90 / s (exposure time) The exposure time is the time interval when the measured temperature has to be present after an abrupt change so that the output value of the pyrometer reaches a given measurement value. The time taken is to reach 90% of the recorded temperature difference. In the 0.00 position (Software InfraWin: min ), the device operates using its time constant. The dynamic exposition time adjustment prolongs the exposure time at the lower range limit. Settings: 0.00 s 0.01 s 0.05 s s 14

15 IMPAC pyrometers IS 12-TSP IGA 12-TSP 9.3 t CL / s (clear times of the maximum value storage) If the maximum value storage is switched on always the highest last temperature value will be displayed and stored. The storage has to be cleared at regular intervals for exchanging by a new and actual value. This feature is particularly useful when fluctuating object temperatures cause the display or the analog outputs to change too rapidly, or the pyrometer is not constantly viewing an object to be measured. In addition, it may also be beneficial to periodically delete and reset the stored maximum values. The following settings are possible: Settings: 0.00 s (= OFF) 0.01 s. 25 s extern auto Hold OFF: At clear time OFF the max. value storage is switched off and only momentary values are measured s: If any clear time between 0.01 s and 25 s is set, the maximum value is estimated and held in double storage mode. After the entered time the storage will be deleted. extern: The external clearing can be activated and used within an own software (see section 14, Data format UPP ) or via an external contact (for connection see 4.1 Connector pin assignment on the back side of the pyrometer). In this case, the storage operates only in single storage, because only a single deletion mechanism is used. auto: The auto mode is used for discontinuous measuring tasks. For example objects are transported on a conveyer belt and pass the measuring beam of the pyrometer only for a few seconds. Here the maximum value for each object has to be indicated. In this mode the maximum value is stored until a new hot object appears in the measuring beam. The temperature which has to be recognized as hot is defined by the low limit of the adjusted sub range. The stored maximum value will be deleted when the temperature of the new hot object exceeds the low limit from of the sub range by 1% or at least 2 C. If a lower limit is not entered, the maximum value storage will be deleted whenever the lower level of the full measuring range has been exceeded. Hold: The function hold enables to freeze the current temperature reading at any moment. For this an external push button or switch has to be connected (see connector pin J in 4.1) which holds the temperature reading as long as the contacts are closed. Operation note: dependent on the settings the maximum value storage either works in single storage mode or in double storage mode: Single storage: the single storage is used when you want to reset the stored value using an external impulse via one contact closure from an external relay (i.e. between two measured objects). The relay contact is connected directly to the pyrometer between pins J and K. This mode allows a new value to be established, after each impulse from the reset signal. double storage: when entering the reset intervals via push buttons or PC interface the double storage is automatically selected. This mode utilizes two memories in which the highest measured value is held and is deleted alternately in the time interval set (clear time). The other memory retains the maximum value throughout the next time interval. The disadvantages of fluctuations in the display with the clock frequency are thereby eliminated. Note: The maximum value storage follows the function of adjustment of exposition time. This results in: clear time the adjusted response time is useless clear times must be at least 3 times longer than the response time only maxima with full maximum value can be recorded, which appear at least 3 times longer than the response time. 9.4 FROM / TO (beginning and end of sub range) You have the opportunity to choose a sub range (minimum 51 C) within the basic measuring range of the pyrometer. This sub range corresponds to the analog output. FROM describes the beginning of this measuring range, TO the end of the range. Additionally with the setting of a sub range it is possible to fulfill the requirements of the auto clear mode of the maximum value storage (see above). 15

16 IMPAC pyrometers IS 12-TSP IGA 12-TSP / 4 ma (analog output) The analog output has to be selected according to the signal input of the connected instrument (controller, PLC, etc.). Settings: ma ma 9.6 SETP (limit contacts) The instrument is equipped with two independent relay limit switches. These are two separate switch-over relay contacts, adjustable to any temperature of the pyrometer s temperature range. The switch-status is indicated in the display with the LED s S1 and S2. When the measuring temperature exceeds the adjusted limit contact temperature the relay switches and the LED indication is on. 9.7 C / F (temperature display) The temperature can be displayed in C or F. 9.8 RS (digital interface) Selection between RS232 and RS485. (This adjustment can only be done on the pyrometer). Settings: C F Settings: RS232 RS ADR (address) Settings: For the connecting of several pyrometers with RS485 with one serial interface it is necessary to give each instrument an individual address for communication. First it is necessary to connect each single instrument to give it an address. After that all instruments can be connected and addressed individually. If parameters may be changed simultaneously on all pyrometers, the global Address 98 can be used. This allows you to program all pyrometers at the same time, regardless of the addresses that have already been assigned. If the address of a pyrometer is unknown, it is possible to communicate with it using the global Address 99 (connect only one pyrometer) kbaud (baud rate) The transmission rate of the serial interface in Baud (Bd) is dependent on the length of the cable. A standard cable length with RS232 for Bd is 7 m, with RS485 2 km. The baud rate is reduced by 50% if the transmission distance is doubled. Settings: 2.4 kbd kbd ma (test current output) The test function activates a test current of 10 ma on the analog output, independently if the instrument is adjusted to 0 to 20 ma or 4 to 20 ma. This enables to test external indicators for correct scaling. The reading of the internal indicator should correspond to the reading of the external indicator. If both displays show different readings the external indicator has a wrong temperature range or input current setting. The test function is switched off automatically after 1 minute and the instrument is working in the measuring mode Wait time (only available via interface commands, see 14, Data format UPP ) Using a pyrometer with RS485 it is possible that the connection is not fast enough to receive the pyrometer s answer to an instruction of the master. In this case a wait time can be set to slow down the data transfer (e.g.: tw = 02 at a baud rate 9600 means a wait time of 2 / 9600 sec). Settings: 00 Bit. 99 Bit 9.13 Switch contact The pyrometer is equipped with a built-in switch contact which allows to use the pyrometer as a thermo switch. This function enables the detection of a hot object in the measuring beam of the pyrometer. The contact is activated only in combination with a clear time settings auto or clear times 1 s (see 9.3 tcl / s (Clear times of the maximum value storage)). If the temperature exceeds 2 C min. or 1% of the span of the temperature sub range above the minimum temperature, the supply voltage (pin K) is connected to pin J. 16

17 IMPAC pyrometers IS 12-TSP IGA 12-TSP 10 Settings via interface and software The operating and analyzing software InfraWin is included in delivery of the pyrometer. With this software all pyrometer functions also can be used on the PC (except changing the interface or using the test current function). This section gives an overview about the functions of the software. Additionally there is a description of the individual icons in the program s help menu. Click on the F1 button after InfraWin has been loaded or click on the? in the menu bar. The following descriptions corresponds to program version 4.0. The latest version is available for free as download from the homepage Installation For installation select the setup program setup.exe from the InfraWin-CD (or the downloaded und unpacked zip file) and follow the installation instructions Program start After installation and the first program start a language must be chosen (German, English, French, Italian, Spanish. The language also can be changed in the program). On the start page the screen shows the following icons: 10.3 The start menu Opens a saved file Storage of measured values for further processing Online measurement with color bar display Online measurement with graphic display Setting of the parameters of the instrument Setting of interface, baud rate and pyrometer addresses (RS485) Time interval between two measurements Number of connected instruments (max. 2) Listing of measured or stored values in tabular form Processing of measured (stored) readings in graph form Processing of measured (stored) readings in a text file Calculation of spot sizes in various measuring distances Only if available: controls the programmable controller PI Beginning Before using the software, the serial interface connected to the pyrometer has to be selected under the Computer icon. For two devices using the RS232 interface, two PC interfaces must be used. Two devices using RS485 may be operated simultaneously by the same interface, if two different addresses have been properly entered (see 9.9, ADR (address)) Number of devices With a click on number of devices InfraWin changes to the display of 1 or 2 devices. If 2 devices are selected, always 2 windows are displayed for settings or evaluation. 17

18 IMPAC pyrometers IS 12-TSP IGA 12-TSP 10.6 Basic settings Under pyrometer parameters all preset values can be displayed and modified if necessary. If the window pyrometer parameters displayed, changing of settings on the pyrometer is blocked. The window pyrometer parameter contains all parameter settings described in 9, Parameters. Choose the correct setting for your application, the actual setting is displayed. Notes: Basic range displays the total range of the pyrometer automatically and can not be changed. If the sub range is changed the new values must be confirmed with OK. Under Material you have the possibility to store the names of different measuring objects with their emissivity values and to recall them from the list. If the pyrometer is equipped with a laser targeting light the laser button ( ) is visible. It may be turned on or off at this point. After two minutes the laser targeting light is switched off automatically. This icon opens a window that allows setting of temperature values and the hysteresis of the limit contacts. The set hysteresis is valid for both contacts. The open / save button enable to store and recall own pyrometer configurations. 1 meas. shows the current measuring temperature in the pyrometer parameters window for approx. 1 second. A click on the Test icon opens a window that allows the direct communication with the pyrometer via the interface commands (see section 14, Data format UPP ). After entering an interface command (00 is the adjusted address ex works, ms is the command reading temperature value ) and a click on Send the displayed window is opened: This window already shows the answer of the pyrometer in 1 / 10. The actual temperature reading is 1513,8 C. Len indicates the length of the answered data string, incl. Carriage Return (Chr(13)). In the lower part of the window the connection with the preset baud rate can be checked. Here the command was send 500 times with baud. It has taken 4.53 seconds and no transmission errors has occurred. 18

19 IMPAC pyrometers IS 12-TSP IGA 12-TSP 10.7 Measurement (color bar) This window displays: current temperature, graphically as color bar and numerically temperature range or adjusted sub range file size and quantity of the measured values of the current measurement emissivity the internal temperature of the instrument (T int ) minimum (T min ) and maximum values (T max ) temperature of the limit contacts The color bar display shows the span of the temperature range or the adjusted sub-range. Entering temperature values in the white fields on the left and right side of the color bar, limits for the color change of the color bar can be set. These limits can also be changed by moving the small bar with the PC mouse. The color bar displays temperatures within the two limits in green color, outside the limits in red color. Changing these values also changes the values for the limit contacts S1 and S2 (see 4.1 Pin assignment on the back of the pyrometer). The targeting light ( ) can be switched on or off, if the pyrometer is equipped with it. Emi: AutoFind: In addition, there is an input field for the emissivity in the window. If the emissivity is changed, the temperature change connected with this can be read off directly. If the true temperature of the measured object is known, you can calculate the emissivity of the measured object using the "Emi: AutoFind function: A measured temperature is displayed with the current set emissivity (in this example 100%) (here: 824 C). If you press Emi: Autofind a window will open which allows you to enter the "true" temperature. Once the temperature entry has been entered and confirmed with "OK", InfraWin will then calculate the emissivity which occurs with the new temperature. This is displayed immediately and can be used for further temperature measurement Measurement (online trend) This window displays: temperature as graphical diagram current temperature quantity of the measured values and file size of the current measurement The example shows a sample reading over the period of approx. 12 seconds with a temperature range between 800 and 1500 C. The final temperature (at the end of the reading) is C. If the pyrometer is equipped with a laser targeting light this can be switched on or off. 19

20 IMPAC pyrometers IS 12-TSP IGA 12-TSP With Mark zone a temperature range can color marked for easier recognition. Setting a temperature under Threshold prevents the recording of values above or below this temperature to keep the file size small. With Scaling trend the view of the temperature range can be limited. Note: The measuring values of measurement color bar or measurement online trend are automatically saved as "standard.i12". Should you need to edit the data later, you need to save the file as another.i12-file (start menu save as) because old values are over-written when a new measurement is taken. Files from older program versions (.i10-files) can be opened and saved as.i Output listing (analyzing) For analyzing the measured values in this field all measured data appears in a numeric list. The date beside the time gives more exactly values to see what happened on time units smaller 1 s. The value specifies the time in seconds after midnight (0:00 h). The amount of data depends on the frequency that readings were taken (settings at 10.12, Time interval between two measurements). As the amount of data increases, so does the amount of storage space required to save it. In order to save room, all.i12 data files are stored by a binary code Output.TXT file (analyzing) The same file as under Output listing may be converted into a text file and can be easily opened, for example with EXCEL. With the standard import settings EXCEL automatically formats the columns accordingly (tabulator as separators) Output trend (analyzing) The graph s curve depicts the temperature change over time within the specified temperature range. Additionally, other information appears in this window; such as recorded time (x-axis) and temperature in degrees (y-axis) as well as the time and temperature at the vertical cursor line which can be dragged with the mouse. Selecting the Trend output initially causes all the saved data to be displayed. If the data exceeds an amount that can be represented reasonably, you may Zoom in on a partial segment using the mouse (such as the segment represented in the example). Under Total you can return to the representation of the entire curve. 20 Note: The last reading is saved in the standard.i12 file and automatically appears in this form upon opening Listing or Trend output. If file open was loaded using another file, the previous file will be overwritten and replaced by the standard.i12 file.

21 IMPAC pyrometers IS 12-TSP IGA 12-TSP PC sampling rate (time interval between two measurements) This function sets a time interval. After each interval one measured value is stored on the PC. The bigger the time interval the smaller will be the stored file. This function is mainly used for long term measurements Spot size calculator The measuring distance or the spot size can be calculated in front or behind of the (adjusted) main distance of the optics. After entering the aperture, the main measuring distance and the main spot size, the input of interim values calculates spot sizes in different measuring distances. 11 Transport, packaging, storage The instrument can be damaged or destroyed if shipped incorrectly. To transport or store the instrument, please use the original box or a box padded with sufficient shock-absorbing material. For storage in humid areas or shipment overseas, the device should be placed in welded foil (ideally along with silica gel) to protect it from humidity. The pyrometer is designed for a storage temperature of -20 to 70 C with non-condensing conditions. Other kind of storage can damage or malfunction the pyrometer. 12 Maintenance 12.1 Safety Attention during pyrometer services: Should the pyrometer be integrated in a running machine process the machine has to be switched off and secured against restart before servicing the pyrometer Service The pyrometer does not have any parts which require regular service, only the lens has to be kept clean. The lens can be cleaned with a soft cloth in combination with alcohol (do not use acid solutions or dilution). Also standard cloths for cleaning glasses or photo objectives can be used Changing of optics The TS pyrometers are equipped with a focusable optics. These optics can be changed against another, e.g. if the lens is scratched or the pyrometer will be used for other measuring distances. When changing the optics a recalibration of the pyrometer is not necessary. Only the lens will be replaced for changing the focusable optics. The fixing ring has to be removed with a suitable objective wrench. After removing the old lens, put in the new one with the convex side to the front. Fix the lens with a new O-ring and the new fixing ring. For differentiation the lenses are marked with a color mark at the border of the lens and on the inside of this ring is the sticker with the optics data: Focusable optics 1: color mark red / black / red Focusable optics 2: color mark red / blue / red Focusable optics 3: color mark red / green / red Focusable optics Lens O-Ring Fixing ring Sticker with Optics data 21